drhowarddrfine - 8:02 pm on Feb 15, 2013 (gmt 0)
I think this is not an answer.
My sites currently sit on a server or set servers in a single datacenter.
Then let's see what Wikipedia calls it:
Cloud computing is the use of computing resources (hardware and software) that are delivered as a service over a network (typically the Internet). The name comes from the use of a cloud-shaped symbol as an abstraction for the complex infrastructure it contains in system diagrams.